Bryant TSTATBBN2S01-C Manual de Instalação descarregar pdf (Página 17)

Page 17

Accessory Connections

A terminal paralleling the compressor contactor coil have

been provided on the CXM/DXM control of the GT-X

line. "A" has been provided to control accessory devices,

such as water valves, electronic air cleaners, humidiﬁ ers,

etc. Note: This terminal should be used only with 24

volt signals and not line voltage signals. This signal

operates with the compressor contactor. See Figure 21 or

the wiring schematic for details.

Figure 21. Accessory Wiring

Terminal Strip

Typical

Water

Valve

24VAC

Figure 22. Well Water AVM Valve Wiring

Water Solenoid Valves

When using solenoid valves on ground water installations.

Figure 21 illustrates a typical well water control valve

wiring which will limit wasted water during a lockout

condition. A slow closing valve may be required to

prevent water hammer. When using an AVM -Taco Slow

Closing valves on GT-X Series equipment Figure 22

wiring should be utilized. The valve takes approximately

60 seconds to open (very little water will ﬂ ow before 45

seconds) and it activates the compressor only after the

valve is completely opened (by closing its end switch).

Only relay or triac based electronic thermostats should

be used with the AVM valve. When wired as shown, the

valve will operate properly with the following notations:

1 - The valve will remain open during a unit lockout.

2 - The valve will draw approximately 25-35 VA through

the “Y” signal of the thermostat. Note: This can

overheat the anticipators of electromechanical

thermostats. Therefore only relay or triac based

thermostats should be used.

GT-X

Thermostat

AVM

Taco Valve

Heater Switch

Thermostat Selection and Wiring

Figure 23a: Thermidistat

(Carrier TSTATCCPRH01)

(Bryant TSTATBBPRH01)

Figure 23b: Non-Programmable Thermostat

(Carrier TSTATCCN2S01)

(Bryant TSTATBBN2S01)

Note:

1. Thermostat DIP switches must be conﬁ gured for heat pump.

Thermostat control conﬁ guration options must be set-up to activate "G"

call when there is a "W" call in order for electric heat to operate correctly.

3. Thermostat should be conﬁ gured for two-stage operation for units with

ECM fan motor to take advantage of the ECM features.

Rev.: 12/29/04D

ECM2 Board

TSTAT CCPRH01

or BBPRH01

Y/Y2

Y1/W2

W/W1

O/W2

DHum

Hum

Outdoor

Sensor

Humidifier

Solenoid

Valve

(24VAC)

Hum

Rev.: 07/18/05D

ECM2 Board

TSTAT CCN2S01

or BBN2S01

Y/Y2

W/W1

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 31 32

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